D defs.my
Entry 1 sense Webster, 1913

Uniat

/yo͞oʹnē-ăt'/ · U·ni·at · IPA /ˈjuː.niːˌæt/
01 n. A member of the Greek Church, who nevertheless acknowledges the supremacy of the Pope of Rome; one of the United Greeks. Also used adjectively.
  1. 1.
    A member of the Greek Church, who nevertheless acknowledges the supremacy of the Pope of Rome; one of the United Greeks. Also used adjectively.(Eccl.)